LEGOEPIC said:
Requested feature: taggroup tagWhy it would be useful: if you want to see images that are based on other things you can add taggroup:copyright and only see images with copyright tags or alternatively you could do -taggroup:copyright if you don't want to see any copyrighted images.
(Sry, I don't know how to bold words)
Technically this option should already be something you can do, but searching grouptags is still broken. It was reported awhile back but either got lost or is very far down a long priority list. In any case, the information about how it would be done is basically by using one of these:
gentags:2
arttags:2
chartags:2
copytags:2
speciestags:2
"Searches for posts with two general, artist, character, copyright, or species tags.
Accepts range syntax."
So in theory you could change any of those to a value of "0" and it would search for any posts without. As in searching copytags:0 should allow you to see all posts without any copyright tags. However this feature is still broken: so what you get is a random mixture of some of the results you asked for, some you didn't ask for and no way to know how many results it didn't show you but should have. And on some searches, it won't do anything at all, just show you the regular page of all results, recently uploaded first. *headdesk* So you can try it still, but it's just a mess until they get it fixed (whenever that may be).
Using Range Syntax with these is also broken. Again, no idea when they're fixing it.
However, all the things you can do to customise searches (some of which actually do still work like they're meant to) are listed here: https://e621.net/help/cheatsheet#Searching_Post_Metatags
It's really frustrating that some of these search options don't work right now. But the things that do work are tremendously useful, so the link is still useful for those.
Updated by anonymous